glass transition temperature wikipedia - EAS
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See all on Wikipediahttps://en.wikipedia.org/wiki/Glass_transitionThe glass transition of a liquid to a solid-like state may occur with either cooling or compression. The transition comprises a smooth increase in the viscosity of a material by as much as 17 orders of magnitude within a temperature range of 500 K without any pronounced change in material
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See moreThe glass–liquid transition, or glass transition, is the gradual and reversible transition in amorphous materials (or in amorphous regions within semicrystalline materials) from a hard and relatively brittle "glassy" state into a
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Refer to the figure on the bottom right plotting the heat capacity as a function of temperature. In this context, Tg is the temperature
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See moreAs a liquid is supercooled, the difference in entropy between the liquid and solid phase decreases. By extrapolating the heat capacity of the supercooled liquid below its glass transition temperature, it is possible to calculate the temperature at which the difference in entropies
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See moreMolecular motion in condensed matter can be represented by a Fourier series whose physical interpretation consists of a superposition of longitudinal and transverse
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See moreSilica, SiO2
Silica (the chemical compound SiO2) has a number of distinct crystalline forms in addition to the quartz structure. Nearly all of the crystalline forms...
See moreWikipedia text under CC-BY-SA licenseWas this helpful?Thanks! Give more feedback- https://simple.wikipedia.org/wiki/Glass_transition
An amorphous solid that goes through a glass transition is called a glass. Supercooling a viscous liquid into the glass state is called vitrification . The glass transition temperature T g is always lower than the melting temperature , T m , of the crystalline state of the material, if one exists.
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- https://en.wikipedia.org/wiki/Talk:Glass_transition_temperature/Archive_1
- I think that article should note that in spin glass physics the word glass transition is used to describe a second order phase transition. Furthermore the term ideal glass transition refers to a hypothetical low temperature second order phase transitionin supercooled liquids.
- https://en.wikipedia.org/wiki/Talk:Glass_transition_temperature
What is the reference(s) for the table of values? According to the table here the glass transition temp of PVC is 81 C, but in the PVC article it says its 87 C. Neither have a reference listed. Wizard191 (talk) 14:41, 12 February 2009 (UTC)
Wikipedia · Text under CC-BY-SA license - https://en.wikipedia.org/wiki/Glass
The standard definition of a glass (or vitreous solid) is a solid formed by rapid melt quenching. However, the term "glass" is often defined in a broader sense, to describe any non-crystalline solid that exhibits a glass transition when heated towards the liquid state.Glass is an amorphous solid.Although the atomic-scale structure of glass shares characteristics of the structure of a ...
- https://zh.wikipedia.org/wiki/玻璃转化
玻璃轉化温度（glass transition temperature, T g ）是玻璃態物质在玻璃態和高弹態之间相互可逆轉化的温度。. 當達到某一溫度時，這區域的分子鏈會做局部運動，這個溫度稱作「玻璃轉移溫度」（Tg）。若溫度低於Tg，因分子鏈無法運動，這時材料處於剛硬的「玻璃態」。
- https://www.wikipedia.org/?title=Glass transition temperature
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- https://en.wikipedia.org/wiki/Polylactic_acid
PLA polymers range from amorphous glassy polymer to semi-crystalline and highly crystalline polymer with a glass transition 60–65 °C, a melting temperature 130-180 °C, and a Young's modulus 2.7–16 GPa. Heat-resistant PLA can withstand temperatures of 110 °C. The basic mechanical properties of PLA are between those of polystyrene and PET.
- https://en.wikipedia.org/wiki/Acrylonitrile_butadiene_styrene
Acrylonitrile butadiene styrene (ABS) (chemical formula (C 8 H 8) x · (C 4 H 6) y · (C 3 H 3 N) z) is a common thermoplastic polymer. Its glass transition temperature is approximately 105 °C (221 °F). [failed verification] ABS is amorphous and therefore has no true melting point.ABS is a terpolymer made by polymerizing styrene and acrylonitrile in the presence of polybutadiene.
- https://en.wikipedia.org/wiki/Poly(methyl_methacrylate)
The glass transition temperature (T g) of atactic PMMA is 105 °C (221 °F). The T g values of commercial grades of PMMA range from 85 to 165 °C (185 to 329 °F); the range is so wide because of the vast number of commercial compositions which are copolymers with co-monomers other than methyl methacrylate.
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